Finding the Fourth Proportional to 75,540.24, 113,324.04 and 31,142.28
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Solution
The fourth proportional to 75,540.24, 113,324.04 and 31,142.28 is: 46,719.06
Step by Step Solution
- Step 1: Write the proportion equation
75,540.24 : 113,324.04 = 31,142.28 : x - Step 2: Convert to fraction form
75,540.24/113,324.04 = 31,142.28/x - Step 3: Cross multiply
75,540.24x = 113,324.04 × 31,142.28 - Step 4: Simplify right side
75,540.24x = 3,529,168,984.41 - Step 5: Solve for x
x = 3,529,168,984.41/75,540.24 - Step 6: Final answer
x = 46,719.06
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.